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bug#19242: latest grep considers text files as binary
From: |
Eric Blake |
Subject: |
bug#19242: latest grep considers text files as binary |
Date: |
Fri, 05 Dec 2014 08:36:17 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 |
On 12/05/2014 08:00 AM, Jim Meyering wrote:
>>
>> I deny this is desirable behavior and I doubt there is a security issue as
>> described. If any other, independent software has a security issue with
>> non-UTF-8 input, it should decide itself to filter it and use accordingly
>> stable decoding functions. It cannot be the task of any tool (grep in this
>> case) to filter output to work around possible security issues in other
>> programs in a pipe. This would be completely against the concept of pipes in
>> the Unix tradition.
>
> This is another side effect of using a multibyte locale.
> As long as there are no NUL bytes in your input, you can work
> around the issue by running grep in the C locale:
>
> LC_ALL=C grep ...
Yes, the C locale has the nice effect of EVERY byte being a valid single
byte character, leaving only NUL bytes and a non-empty file not ending
in newline as the only reasons for a file to be marked binary.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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- bug#19242: latest grep considers text files as binary, Thomas Wolff, 2014/12/01
- bug#19241: latest grep considers text files as binary, Paul Eggert, 2014/12/01
- bug#19241: latest grep considers text files as binary, Jim Meyering, 2014/12/01
- bug#19242: latest grep considers text files as binary, Paul Eggert, 2014/12/01
- bug#19242: latest grep considers text files as binary, Thomas Wolff, 2014/12/05
- bug#19242: latest grep considers text files as binary, Eric Blake, 2014/12/05
- bug#19242: latest grep considers text files as binary, Eric Blake, 2014/12/05